var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var cors = require('cors') //解决跨域问题
var { verifyToken } = require("./utils/token.js")

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var categoryRouter = require("./routes/category")
var uploadRouter = require("./routes/upload")
var app = express();
app.use(cors())
    // view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use("/public", express.static(path.join(__dirname, 'public')));
// token验证的操作
app.use((req, res, next) => {
    if (req.url.includes("/login") || req.url.includes("/captcha")) {
        next()
    } else {
        console.log(req.headers);
        let token = req.headers["hg_token"]
        console.log(token);
        if (token != "undefined") {
            verifyToken(token).then(result => {
                if (result.isLogin) {
                    next()
                }
            })
        } else {
            res.json({
                status: 401,
                msg: "未授权"
            })
        }


    }
})
app.use('/', indexRouter);
app.use('/api/users', usersRouter);
app.use("/api/category", categoryRouter)

// http://localhost:3000/api/upload/img
app.use("/api/upload", uploadRouter)
    // catch 404 and forward to error handler
app.use(function(req, res, next) {
    next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render('error');
});

module.exports = app;